/**
 * 滑动验证组件样式
 * CaptchaSlider Component CSS
 * 
 * @author Cascade
 * @version 1.0.0
 */

/* 滑动验证容器 */
.captcha-container {
    width: 100%;
    height: 50px;
    background: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    user-select: none; /* 防止拖动时选中文字 */
}

.captcha-container:hover {
    border-color: #3498db;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1), 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.captcha-container.dragging {
    cursor: grabbing;
    border-color: #2980b9;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1), 0 0 0 3px rgba(41, 128, 185, 0.2);
}

/* 目标区域 */
.captcha-target {
    position: absolute;
    top: 50%;
    width: 60px;
    height: 42px;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.1) 0%, rgba(41, 128, 185, 0.1) 100%);
    border: 2px dashed #3498db;
    border-radius: 10px;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: #3498db;
    font-weight: 600;
    opacity: 0.6;
    transition: all 0.3s ease;
    pointer-events: none;
}

.captcha-target.active {
    opacity: 1;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.2) 0%, rgba(41, 128, 185, 0.2) 100%);
    border-color: #2980b9;
    animation: targetPulse 1s ease-in-out infinite;
}

/* 滑块 */
.captcha-slider {
    position: absolute;
    top: 50%;
    left: 0;
    width: 54px;
    height: 42px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    border-radius: 10px;
    cursor: pointer;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 18px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
    transition: all 0.3s ease;
    z-index: 10;
    user-select: none; /* 防止拖动时选中文字 */
}

.captcha-slider:hover {
    transform: translateY(-50%) scale(1.05);
    box-shadow: 0 6px 16px rgba(52, 152, 219, 0.4);
}

.captcha-slider:active {
    transform: translateY(-50%) scale(0.95);
}

.captcha-slider.dragging {
    cursor: grabbing;
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 8px 20px rgba(52, 152, 219, 0.5);
    z-index: 1000;
}

/* 提示文字 */
.captcha-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #6c757d;
    font-size: 14px;
    font-weight: 500;
    pointer-events: none;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

/* 成功状态 */
.captcha-success {
    background: #f0f9ff !important;
    border-color: #3498db !important;
    animation: successPulse 0.6s ease;
}

.captcha-success .captcha-slider {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%) !important;
    color: #ffffff !important;
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.4) !important;
}

.captcha-success .captcha-text {
    color: #27ae60 !important;
    font-weight: 600 !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    transition: all 0.3s ease !important;
}

.captcha-success .captcha-target {
    opacity: 0 !important;
    transform: translateY(-50%) scale(0.8) !important;
    transition: all 0.15s ease !important;
}

/* 动画效果 */
@keyframes targetPulse {
    0%, 100% { transform: translateY(-50%) scale(1); }
    50% { transform: translateY(-50%) scale(1.05); }
}

@keyframes successPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

/* 主题变体 */
.captcha-container.theme-red .captcha-slider {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    box-shadow: 0 4px 12px rgba(231, 76, 60, 0.3);
}

.captcha-container.theme-red .captcha-target {
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.1) 0%, rgba(192, 57, 43, 0.1) 100%);
    border-color: #e74c3c;
    color: #e74c3c;
}

.captcha-container.theme-red:hover {
    border-color: #e74c3c;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1), 0 0 0 3px rgba(231, 76, 60, 0.1);
}

.captcha-container.theme-red .captcha-success .captcha-text {
    color: #27ae60 !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
}

.captcha-container.theme-green .captcha-slider {
    background: linear-gradient(135deg, #27ae60 0%, #229954 100%);
    box-shadow: 0 4px 12px rgba(39, 174, 96, 0.3);
}

.captcha-container.theme-green .captcha-target {
    background: linear-gradient(135deg, rgba(39, 174, 96, 0.1) 0%, rgba(34, 153, 84, 0.1) 100%);
    border-color: #27ae60;
    color: #27ae60;
}

.captcha-container.theme-green:hover {
    border-color: #27ae60;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1), 0 0 0 3px rgba(39, 174, 96, 0.1);
}

.captcha-container.theme-green .captcha-success .captcha-text {
    color: #27ae60 !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
}

.captcha-container.theme-purple .captcha-slider {
    background: linear-gradient(135deg, #9b59b6 0%, #8e44ad 100%);
    box-shadow: 0 4px 12px rgba(155, 89, 182, 0.3);
}

.captcha-container.theme-purple .captcha-target {
    background: linear-gradient(135deg, rgba(155, 89, 182, 0.1) 0%, rgba(142, 68, 173, 0.1) 100%);
    border-color: #9b59b6;
    color: #9b59b6;
}

.captcha-container.theme-purple:hover {
    border-color: #9b59b6;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1), 0 0 0 3px rgba(155, 89, 182, 0.1);
}

.captcha-container.theme-purple .captcha-success .captcha-text {
    color: #27ae60 !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
}

.captcha-container.theme-orange .captcha-slider {
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
    box-shadow: 0 4px 12px rgba(243, 156, 18, 0.3);
}

.captcha-container.theme-orange .captcha-target {
    background: linear-gradient(135deg, rgba(243, 156, 18, 0.1) 0%, rgba(230, 126, 34, 0.1) 100%);
    border-color: #f39c12;
    color: #f39c12;
}

.captcha-container.theme-orange:hover {
    border-color: #f39c12;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1), 0 0 0 3px rgba(243, 156, 18, 0.1);
}

.captcha-container.theme-orange .captcha-success .captcha-text {
    color: #27ae60 !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .captcha-container {
        height: 45px;
        border-radius: 10px;
    }
    
    .captcha-slider {
        width: 48px;
        height: 38px;
        font-size: 16px;
    }
    
    .captcha-target {
        width: 54px;
        height: 38px;
        font-size: 11px;
    }
    
    .captcha-text {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .captcha-container {
        height: 40px;
        border-radius: 8px;
    }
    
    .captcha-slider {
        width: 44px;
        height: 34px;
        font-size: 14px;
    }
    
    .captcha-target {
        width: 50px;
        height: 34px;
        font-size: 10px;
    }
    
    .captcha-text {
        font-size: 12px;
    }
}

/* 暗色主题支持 */
@media (prefers-color-scheme: dark) {
    .captcha-container {
        /* background: #1f2937; */
        /* border-color: #374151; */
    }
    
    .captcha-container:hover {
        border-color: #3498db;
    }
    
    .captcha-text {
        color: #9ca3af;
    }
    
    .captcha-success {
        /* background: #1e3a5f !important; */
        /* 用绿色表示成功 */
        border-color: #2ecc71 !important; 
    }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
    .captcha-container {
        border-width: 3px;
        border-color: #000;
    }
    
    .captcha-slider {
        border: 2px solid #000;
    }
    
    .captcha-target {
        border-width: 3px;
        border-color: #000;
    }
}

/* 减少动画模式 */
@media (prefers-reduced-motion: reduce) {
    .captcha-container,
    .captcha-slider,
    .captcha-target,
    .captcha-text {
        transition: none;
        animation: none;
    }
    
    .captcha-slider:hover {
        transform: translateY(-50%);
    }
}